S
M
T
W
T
F
S
30
70°
44°
31
71°
44°
1
68°
45°
2
68°
51°
3
72°
51°
4
73°
42°
5
73°
40°
6
67°
39°
7
65°
39°
8
64°
41°
9
64°
41°
10
66°
42°
11
65°
40°
12
64°
36°
13
71°
46°
14
62°
40°
15
62°
44°
16
Hist. Avg.
65°
39°
17
Hist. Avg.
64°
39°
18
Hist. Avg.
64°
39°
19
Hist. Avg.
63°
38°
20
Hist. Avg.
63°
38°
21
Hist. Avg.
63°
38°
22
Hist. Avg.
62°
37°
23
Hist. Avg.
62°
37°
24
Hist. Avg.
61°
37°
25
Hist. Avg.
61°
36°
26
Hist. Avg.
61°
36°
27
Hist. Avg.
60°
36°
28
Hist. Avg.
60°
35°
29
Hist. Avg.
60°
35°
30
Hist. Avg.
59°
34°
1
Hist. Avg.
59°
34°
2
Hist. Avg.
58°
34°
3
Hist. Avg.
58°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Deer Valley
Deer Valley's September 2026 forecast shows daily high temperatures ranging from 62° to 73°, with overnight lows between 36° and 51°. The average high for September is 67° with an average low of 43°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Deer Valley. See also: October | November | December.
